Results 111 to 120 of about 12,765,544 (342)

The renormalization group via statistical inference

New Journal of Physics, 2015
In physics, one attempts to infer the rules governing a system given only the results of imperfect measurements. Hence, microscopic theories may be effectively indistinguishable experimentally.
Cédric Bény, Tobias J Osborne
doaj   +1 more source

A Renormalization Group Procedure for Fiber Bundle Models

Frontiers in Physics, 2018
We introduce two versions of a renormalization group scheme for the equal load sharing fiber bundle model. The renormalization group is based on formulating the fiber bundle model in the language of damage mechanics.
Srutarshi Pradhan, Alex Hansen, Purusattam Ray, Purusattam Ray   +3 more
doaj   +1 more source

Towards c=0 Flows

, 1994
We discuss some implications of the gravitational dressing of the renormalization group for conformal field theories perturbed by relevant operators. The renormalization group flows are defined with respect to the dilatation operator associated with the $
Ambjorn, Cardy, D'Hoker, David, Distler, Klebanov, Knizhnik, Mavromatos, Mavromatos, O.A. Soloviev, Polyakov, Polyakov, Polyakov, S. Thomas, Sabra, Schmidhuber, Sen, Sen, Soloviev, Sonoda, Sonoda, Tanii, W.A. Sabra, Wilson, Zamolodchikov, Zwiebach   +25 more
core   +2 more sources

Renormalization Group Flow in CDT [PDF]

, 2014
We perform a first investigation of the coupling constant flow of the nonperturbative lattice model of four-dimensional quantum gravity given in terms of Causal Dynamical Triangulations (CDT).
Ambjorn, J., Goerlich, A., Jurkiewicz, J., Kreienbuehl, A., Loll, R.   +4 more
core   +3 more sources

Critical chiral Heisenberg model with the functional renormalization group [PDF]

, 2017
The critical properties of the spin-density-wave/semimetal phase transition in Dirac materials are still under debate despite all the efforts from continuum and lattice methods.
B. Knorr
semanticscholar   +1 more source

Defect‐Free Sb‐Doping in Bi2O2Se Achieves Two‐Order‐of‐Magnitude Reduction in Saturation Intensity While Preserving High Carrier Mobility

Advanced Science, EarlyView.
This study demonstrates defect‐free states Sb3⁺ doping in Bi2O2Se, enhancing carrier mobility while reducing saturation intensity by about two orders of magnitude. First‐principles calculations and experiments reveal optimized electronic structure and improved nonlinear response.
Qingling Tang, Zhongben Pan, Hongwei Chu, Han Pan, Dechun Li   +4 more
wiley   +1 more source

Maximal abelian and Curci-Ferrari gauges in momentum subtraction at three loops

, 2015
The vertex structure of QCD fixed in the maximal abelian gauge (MAG) and Curci-Ferrari gauge is analysed at two loops at the fully symmetric point for the 3-point functions corresponding to the three momentum subtraction (MOM) renormalization schemes ...
Bell, J. M., Gracey, J. A.
core   +1 more source

In-medium similarity renormalization group for closed and open-shell nuclei [PDF]

, 2016
We present a pedagogical introduction to the in-medium similarity renormalization group (IMSRG) framework for ab initio calculations of nuclei. The IMSRG performs continuous unitary transformations of the nuclear many-body Hamiltonian in second-quantized
H. Hergert
semanticscholar   +1 more source

Scrambling‐Enhanced Quantum Battery Charging in Black Hole Analogues

Advanced Science, EarlyView.
By employing a black‐hole‐analog quantum battery constructed from a position‐dependent XY model, its dynamical behavior is investigated through a quench of the scrambling parameter. It is systematically quantified that how the simulated scrambling improves key performance metrics‐namely, stored energy, peak power, and charging time‐thereby offering a ...
Zhilong Liu, Ying Li, Zehua Tian, Jieci Wang   +3 more
wiley   +1 more source

Low-energy theorem revisited and OPE in massless QCD

Journal of High Energy Physics
We revisit a low-energy theorem (LET) of NSVZ type in SU(N) QCD with N f massless quarks derived in [1] by implementing it in dimensional regularization. The LET relates n-point correlators in the l.h.s.
Marco Bochicchio, Elisabetta Pallante
doaj   +1 more source